( function( wp ) {
	const { __ } = wp.i18n;
	const { getBlockType, registerBlockType } = wp.blocks;
	const { createElement: el, Fragment, useState } = wp.element;
	const { InspectorControls, MediaUpload, MediaUploadCheck } = wp.blockEditor;
	const { PanelBody, TextControl, TextareaControl, Button, ToggleControl, SelectControl, BaseControl, Notice } = wp.components;
	const ServerSideRender = wp.serverSideRender;

	const themeOptions = [
		{ label: __( 'Modern Dark', 'modern-audio-player' ), value: 'modern-dark' },
		{ label: __( 'Glassmorphism', 'modern-audio-player' ), value: 'glassmorphism' },
		{ label: __( 'Podcast Style', 'modern-audio-player' ), value: 'podcast-style' }
	];

	function getAudioUrlWarning( value ) {
		if ( ! value ) {
			return '';
		}

		try {
			const url = new window.URL( value, window.location.origin );
			const hostname = url.hostname.toLowerCase();
			const pathname = url.pathname.toLowerCase();

			if ( [ 'youtube.com', 'www.youtube.com', 'youtu.be', 'soundcloud.com', 'open.spotify.com', 'music.apple.com' ].includes( hostname ) ) {
				return __( 'This URL looks like a page, not a direct audio file. Please use a direct MP3 or other audio file URL.', 'modern-audio-player' );
			}

			if ( /\.(html?|php)$/i.test( pathname ) ) {
				return __( 'This URL does not look like a direct audio file. Please confirm it points directly to the audio asset.', 'modern-audio-player' );
			}
		} catch ( error ) {
			return __( 'Please enter a valid audio URL.', 'modern-audio-player' );
		}

		return '';
	}

	function formatPlaylistText( playlist ) {
		if ( ! Array.isArray( playlist ) || ! playlist.length ) {
			return '';
		}

		return playlist.map( function( track ) {
			return [
				track.title || '',
				track.src || '',
				track.image || ''
			].join( ' | ' );
		} ).join( '\n' );
	}

	function parsePlaylistText( value ) {
		return String( value || '' )
			.split( /\r\n|\r|\n/ )
			.map( function( line ) {
				return line.trim();
			} )
			.filter( function( line ) {
				return line.length > 0;
			} )
			.map( function( line ) {
				const parts = line.split( '|' ).map( function( part ) {
					return part.trim();
				} );

				return {
					title: parts[ 0 ] || '',
					src: parts[ 1 ] || '',
					image: parts[ 2 ] || ''
				};
			} )
			.filter( function( track ) {
				return !! track.src;
			} );
	}

	const blockSettings = {
		edit: function( props ) {
			const attributes = props.attributes;
			const setAttributes = props.setAttributes;
			const initialPlaylistText = formatPlaylistText( attributes.playlist || [] );
			const playlistState = useState( initialPlaylistText );
			const playlistText = playlistState[ 0 ];
			const setPlaylistText = playlistState[ 1 ];
			const firstPlaylistTrack = Array.isArray( attributes.playlist ) && attributes.playlist.length ? attributes.playlist[ 0 ] : null;
			const audioUrlWarning = getAudioUrlWarning( attributes.src || ( firstPlaylistTrack && firstPlaylistTrack.src ) || '' );

			function onSelectAudio( media ) {
				setAttributes( {
					src: media && media.url ? media.url : '',
					title: attributes.title || ( media && media.title ? media.title : '' )
				} );
			}

			function onSelectImage( media ) {
				setAttributes( {
					image: media && media.url ? media.url : ''
				} );
			}

			return el(
				Fragment,
				{},
				el(
					InspectorControls,
					{},
					el(
						PanelBody,
						{ title: __( 'Player Content', 'modern-audio-player' ), initialOpen: true },
						el( TextControl, {
							label: __( 'Track Title', 'modern-audio-player' ),
							value: attributes.title || '',
							onChange: function( value ) {
								setAttributes( { title: value } );
							}
						} ),
						el( TextControl, {
							label: __( 'Audio Source URL', 'modern-audio-player' ),
							value: attributes.src || '',
							help: __( 'Paste a direct audio URL or choose one from the media library below. This remains the fallback single-track source.', 'modern-audio-player' ),
							onChange: function( value ) {
								setAttributes( { src: value } );
							}
						} ),
						audioUrlWarning ? el( Notice, {
							status: 'warning',
							isDismissible: false
						}, audioUrlWarning ) : null,
						el(
							BaseControl,
							{ label: __( 'Audio File', 'modern-audio-player' ) },
							el(
								MediaUploadCheck,
								{},
								el( MediaUpload, {
									onSelect: onSelectAudio,
									allowedTypes: [ 'audio' ],
									render: function( renderProps ) {
										return el(
											Button,
											{ variant: 'secondary', onClick: renderProps.open },
											attributes.src ? __( 'Replace Audio File', 'modern-audio-player' ) : __( 'Choose Audio File', 'modern-audio-player' )
										);
									}
								} )
							)
						),
						el(
							BaseControl,
							{ label: __( 'Cover Image', 'modern-audio-player' ) },
							el(
								MediaUploadCheck,
								{},
								el( MediaUpload, {
									onSelect: onSelectImage,
									allowedTypes: [ 'image' ],
									render: function( renderProps ) {
										return el(
											Button,
											{ variant: 'secondary', onClick: renderProps.open },
											attributes.image ? __( 'Replace Cover Image', 'modern-audio-player' ) : __( 'Choose Cover Image', 'modern-audio-player' )
										);
									}
								} )
							)
						),
						el( TextareaControl, {
							label: __( 'Playlist Tracks', 'modern-audio-player' ),
							help: __( 'One track per line in this format: Title | Audio URL | Image URL. If empty, the single-track fields above are used.', 'modern-audio-player' ),
							value: playlistText,
							onChange: function( value ) {
								setPlaylistText( value );
								setAttributes( { playlist: parsePlaylistText( value ) } );
							}
						} )
					),
					el(
						PanelBody,
						{ title: __( 'Theme', 'modern-audio-player' ), initialOpen: false },
						el( ToggleControl, {
							label: __( 'Inherit Global Theme', 'modern-audio-player' ),
							checked: !! attributes.useGlobalTheme,
							onChange: function( value ) {
								setAttributes( { useGlobalTheme: value } );
							}
						} ),
						el( SelectControl, {
							label: __( 'Theme Override', 'modern-audio-player' ),
							value: attributes.theme || 'modern-dark',
							options: themeOptions,
							disabled: !! attributes.useGlobalTheme,
							onChange: function( value ) {
								setAttributes( { theme: value } );
							}
						} )
					)
				),
				el(
					'div',
					{ className: 'map-editor-preview' },
					el( ServerSideRender, {
						block: props.name,
						attributes: attributes
					} )
				)
			);
		},
		save: function() {
			return null;
		}
	};

	if ( ! getBlockType( 'velora/audio-player' ) ) {
		registerBlockType( 'velora/audio-player', blockSettings );
	}

	if ( ! getBlockType( 'map/audio-player' ) ) {
		registerBlockType( 'map/audio-player', blockSettings );
	}
} )( window.wp );